2-Chlorothieno<2,3-b>-1-benzothiopyran-4-one | 13125-03-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 硫色烯
• 英文名称: 2-Chlorothieno<2,3-b>-1-benzothiopyran-4-one
• 英文别名: 6-Chlorothieno[2,3-b]thiochromen-4-one
• CAS: 13125-03-6
• 化学式: C₁₁H₅ClOS₂
• 分子量: 252.745
• InChiKey: FXXBZSHVIFYETL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  70.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-(5-氯-2-噻吩-2-基硫烷基苯基)乙酸 、 磷酸酐 生成 2-Chlorothieno<2,3-b>-1-benzothiopyran-4-one
  参考文献：
  名称：

  POLIVKA, Z.;VALCHAR, M.;PROTIVA, M., COLLECT. CZECH. CHEM. COMMUN., 1983, 48, N 10, 2970-2976

  摘要：

  DOI：

文献信息

• Potential noncataleptic neuroleptic agents: Synthesis and pharmacology of 7-chloro-4-[4-(2-hydroxyethyl)piperazino]-4,5-dihydrothieno[2,3-b]-1-benzothiepin
  作者：Zdeněk Polívka、Martin Valchář、Miroslav Protiva

  DOI：10.1135/cccc19832970

  日期：——

  Heating of 2,5-dichloroacetophenone with 2-thiophenethiol, potassium carbonate and copper gave 5-chloro-2-(2-thienylthio)acetophenone (V) which was subjected to the Willgerodt reaction with sulphur and morpholine. The product was a mixture of the thiomorpholide VI and oxothiomorpholide VII. After a partial separation the predominanting product VI was hydrolyzed without characterization with ethanolic potassium hydroxide to give the acid VIII. Cyclization by treatment with phosphorus pentoxide in boiling toluene gave 7-chlorothieno[2,3-b]-1-benzothiepin-4(5H)-one (X) which was reduced with sodium borohydride to the alcohol XII. A reaction with hydrogen chloride in benzene led to the chloro derivative XIII whose substitution reaction with 1-(2-hydroxyethyl)piperazine afforded the title compound IV. The product has strong central depressant and discoordinating activity, a low cataleptic efficity but in a relatively high dose it does not influence the dopamine metabolism in the rat brain.

  将2,5-二氯乙酰苯和2-硫代苯硫醇、碳酸钾和铜加热，得到5-氯-2-(2-噻吩硫基)乙酮(V)，随后用硫和吗啡啶对其进行Willgerodt反应。产物是硫代吗啶内酯VI和氧硫代吗啶内酯VII的混合物。在部分分离后，主要产物VI在乙醇钾氢氧化物的水解下未经表征即得到酸VIII。通过在沸腾甲苯中用五氧化二磷处理进行环化反应，得到7-氯噻吩[2,3-b]-1-苯并噻吩-4(5H)-酮(X)，随后用硼氢化钠还原为醇XII。在苯中与氢氯酸反应，得到氯代衍生物XIII，其取代反应与1-(2-羟乙基)哌嗪发生，得到标题化合物IV。该产物具有强烈的中枢抑制和失调活性，低的猫状效应，但在相对较高的剂量下不影响大鼠脑内多巴胺代谢。